执行机构
铰链
控制理论(社会学)
流离失所(心理学)
顺应机制
机制(生物学)
有限元法
压电
运动系统
工程类
机械工程
线性执行器
结构工程
控制工程
声学
运动(物理)
计算机科学
物理
电气工程
心理治疗师
心理学
控制(管理)
量子力学
人工智能
作者
Jiru Wang,Jianping Li,Zhi Xu,Shunbo Wang,Zhaoxin Wang,Bowen Xu,Yifan Sun,Sihan Liu,Hongwei Zhao
出处
期刊:Mechatronics
[Elsevier]
日期:2019-05-01
卷期号:59: 61-68
被引量:31
标识
DOI:10.1016/j.mechatronics.2019.03.003
摘要
This paper proposes a novel linear stick-slip piezoelectric actuator with compact structure and a dual-functional flexure hinge mechanism, which can realize motion of high step efficiency, high speed and precision. The flexure hinge mechanism is used in the actuator for realizing parasitic motion and amplifying the displacement of the piezo stacks to enhance the motion performance of the actuator. The structure and the operating principle is described in detail. The pseudo-rigid-body method and the finite element analysis method are adopted in the design process. A series of experiments are carried out based on a manufactured prototype to prove the validity of the proposed actuator, and motion parameters of the prototype are obtained. The resolution of the prototype is 0.594 µm, the largest velocity is 0.742 mm/s, the largest load capacity is 3.6 kg and the largest step efficiency is 0.934. And a valid kinetic model is established for further investigation and design guide.
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